CN105892412B - Multi-shaft motion control system hardware structure based on self-defined bus - Google Patents
Multi-shaft motion control system hardware structure based on self-defined bus Download PDFInfo
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- CN105892412B CN105892412B CN201410771183.7A CN201410771183A CN105892412B CN 105892412 B CN105892412 B CN 105892412B CN 201410771183 A CN201410771183 A CN 201410771183A CN 105892412 B CN105892412 B CN 105892412B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a kind of multi-shaft motion control system hardware structure based on self-defined bus includes at least host computer 1, main motion controller 2, one or more from motion controller 3, one or more drivers and one or more motors.The main motion controller 2 is connected with one or more from motion controller 3 by self-defined bus, is realized to all the synchronized Coordinative Controls from motion controller 3 and all kinematic axis；It is described each from motion controller 3 can four kinematic axis of the synchronized Coordinative Control, reduce control task, and parallel computation may be implemented, improve the operational capability of system.The present invention uses master slave and distributed structure, is easy to extend, and has versatility.The present invention is suitable for field of industrial automation control, especially suitable for requiring the multi-shaft interlocked control system of high speed and super precision.
Description
Technical field
The present invention relates to field of industrial automation control, more particularly to a kind of multiaxis based on self-defined bus
Kinetic control system hardware structure.
Background technique
In modern manufacturing industry, multi-shaft motion control system multi-shaft linkage numerical control machine, Compound Machining numerically-controlled machine tool, mostly from
By being used widely in the electromechanical equipments such as degree industrial robot, Medical Devices.With social progress and computer technology, automatic
The high speed development of the technologies such as change technology, signal processing technology, intelligent control technology, power electronic technique is manufactured to electromechanics
The efficiency and performance requirement of equipment are higher and higher, thus also propose to the control performance of multi-shaft motion control system higher and higher
It is required that.
A kinematic axis in multi-shaft motion control system is driven by one motor of a driver drives, quantity
It is differed from three axis to more than ten axis, even tens axis.As the movement number of axle increases, the non-linear of system, coupling are more complicated, respectively
The problems such as dynamic response between a kinematic axis is inconsistent and parameter mismatches is more prominent.Make these non-linear, close couplings
Multi-shaft motion control system complete desired motion by given order, generally require the complicated control for being aided with high-performance, high robust
Algorithm processed, thus multi-shaft motion control system needs to complete the calculating of large amount of complex algorithm, data transmission and and other processing in real time
Etc. tasks, this to the memory space of corresponding system hardware, real-time, multitasking ability propose requirements at the higher level.
Currently, most of multi-axis motion controller control movement number of axle is limited in the market, when the actual motion number of axle is more than one
When the movement number of axle that a multi-axis motion controller can control, it is necessary to increase other multi-axis motion controller.And when needs
When the kinematic axis of multiple motion controller control wholes, the synchronous association of each kinematic axis between multiple motion controllers how is realized
Tonality is a more insoluble problem.For make a multi-axis motion controller can control more movement number of axle and
Control performance is not reduced, is realized often through improving uniprocessor performance or increasing processor, with the increasing of the movement number of axle
Add, multi-axis motion controller development difficulty increases.
Summary of the invention
Object of the present invention is to the controllable movement number of axle to extend multi-axis motion controller, and solve multiple multiaxial motion controls
The synchronized Coordinative Control problem of each kinematic axis between device processed, and realize and improving the same of multi-axis motion controller control performance
When reduce development difficulty, to propose a kind of multi-shaft motion control system hardware structure based on self-defined bus.
Technical solution of the present invention is summarized as follows:
Multi-shaft motion control system hardware structure based on self-defined bus is included at least using master slave and distributed structure
Host computer 1, main motion controller 2, one or more are electric from motion controller 3, one or more drivers and one or more
Machine；The host computer 1 is connected with main motion controller 2, and the main motion controller 2 passes through self-defined bus and one or more
It is connected from motion controller 3, described to be connected from motion controller 3 with one or more drivers, each driver difference
It is connected with a motor.
The main motion controller 2 includes at least communication interface and main DSP；The communication interface and 1 phase of host computer
Even, the main DSP is connected with communication interface；The main DSP obtains the trajectory planning that host computer 1 issues by communication interface and refers to
It enables, and instruct and parse, look forward to the prospect control, the synchronized Coordinative Control and interpolation operation, realized finally by self-defined bus
It sends movement instruction to each from motion controller 3.
The main motion controller 2 can be connected with one or more from motion controller 3 by self-defined bus, from fortune
The number of movement controller 3 is determined by the number of driver and motor.
It is described from motion controller 3, include at least FPGA1, from DSP, memory, FPGA2 and signal conditioning circuit；Institute
State FPGA2 and be connected with main motion controller 2 by self-defined bus, it is described from DSP pass through internal bus respectively with FPGA1, deposit
Reservoir is connected with FPGA2, and the FPGA1 is connected with FPGA2 and signal conditioning circuit respectively, the signal conditioning circuit and one
Or multiple drivers are connected.
The signal conditioning circuit includes at least dummy instruction signal conditioning circuit, command pulse signal conditioning circuit
With feedback signal conditioning circuit.
Described to be connected from motion controller 3 with one or more drivers, one at most can be with from motion controller 3
It is connected with four drivers.
The FPGA1 is responsible for input/output signal processing, data acquisition, algorithm pretreatment and interface conversion；The FPGA2
It is responsible for the data exchange from motion controller 3 and main motion controller 2, and controls FPGA1 and carry out input/output signal processing, number
According to acquisition, algorithm pretreatment and interface conversion；It is described to be responsible for all kinds of backoff algorithms and the processing of uniaxiality tracking control algolithm from DSP.
The main motion controller 2 issues movement from the FPGA2 from motion controller 3 to from DSP by self-defined bus
Instruct and obtain the status information of each kinematic axis, and each fortune for instructing and obtaining according to the trajectory planning that host computer 1 issues
The status information of moving axis synchronizes coordinated control to all kinematic axis.
The main motion controller 2 can be by self-defined bus simultaneously to all slave fortune being connected on self-defined bus
Then the FPGA2 write control information of movement controller 3 generates different control by the FPGA2 from motion controller 3 and believes
Number, and control the control task for implementing different phase to kinematic axis from DSP and FPGA1.
The slave DSP from motion controller 3 can at most be connect with four drivers, i.e., at most can be to four kinematic axis
Carry out tracing control.
The present invention has the advantages that compared with prior art
(1) present invention uses master slave and distributed structure, when moving number of axle increase, it is only necessary to increase from motion controller,
It is respectively controlled from motion controller is unified by the same main motion controller, be easy to extend and realize the synchronous association to all kinematic axis
Regulation system.
(2) present invention each of parallel computation may be implemented from motion controller, and each from motion controller most
Mostly can four kinematic axis of the synchronized Coordinative Control, when needing the number of axle of the synchronized Coordinative Control to increase and then need to increase from motion controller
When quantity, the servo period of control shaft is needed not will increase, to guarantee the movenent performance index of overall system control, when needing to synchronize
The number of axle of coordinated control is more, and the effect of axis motion control performance indicator of the invention is more significant.
(3) the input/output signal control of the slave motion controller in the present invention is all based on FPGA design, flexibly easy-to-use,
Convenient for hardware system upgrading.
Detailed description of the invention
Fig. 1 is the multi-shaft motion control system hardware structure overall plan figure of the invention based on self-defined bus
Fig. 2 is one conceptual scheme of the embodiment of the present invention
Fig. 3 is two conceptual scheme of the embodiment of the present invention
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
(1) embodiment one:
As shown in Fig. 2, the multi-shaft motion control system hardware structure based on self-defined bus of the embodiment of the present invention one, is adopted
With master slave and distributed structure, include at least host computer 1, main motion controller 2, one from 3, four drivers of motion controller and
Four motors；The host computer 1 is connected with main motion controller 2, and the main motion controller 2 passes through self-defined bus and one
From motion controller 3 be connected, it is described to be connected from motion controller 3 with four drivers, each driver respectively with one
Motor is connected.
The main motion controller 2 includes at least communication interface and main DSP；The communication interface and 1 phase of host computer
Even, the main DSP is connected with communication interface；The main DSP obtains the trajectory planning that host computer 1 issues by communication interface and refers to
It enables, and instruct and parse, look forward to the prospect control, the synchronized Coordinative Control and interpolation operation, realized finally by self-defined bus
It sends movement instruction to from motion controller 3.
It is described from motion controller 3, include at least FPGA1, from DSP, memory, FPGA2 and signal conditioning circuit；Institute
State FPGA2 and be connected with main motion controller 2 by self-defined bus, it is described from DSP pass through internal bus respectively with FPGA1, deposit
Reservoir is connected with FPGA2, and the FPGA1 is connected with FPGA2 and signal conditioning circuit respectively, the signal conditioning circuit and four
Driver is connected.
The signal conditioning circuit includes at least dummy instruction signal conditioning circuit, command pulse signal conditioning circuit
With feedback signal conditioning circuit.
The FPGA1 is responsible for input/output signal processing, data acquisition, algorithm pretreatment and interface conversion；The FPGA2
It is responsible for the data exchange from motion controller 3 and main motion controller 2, and controls FPGA1 and carry out input/output signal processing, number
According to acquisition, algorithm pretreatment and interface conversion；It is described to be responsible for all kinds of backoff algorithms and the processing of uniaxiality tracking control algolithm from DSP.
The main motion controller 2 issues movement from the FPGA2 from motion controller 3 to from DSP by self-defined bus
Instruct and obtain the status information of each kinematic axis, and each fortune for instructing and obtaining according to the trajectory planning that host computer 1 issues
The status information of moving axis synchronizes coordinated control to all kinematic axis.
The main motion controller 2 can be by self-defined bus simultaneously to all slave fortune being connected on self-defined bus
Then the FPGA2 write control information of movement controller 3 generates different control by the FPGA2 from motion controller 3 and believes
Number, and control the control task for implementing different phase to kinematic axis from DSP and FPGA1.
(2) embodiment two:
As shown in Fig. 2, the multi-shaft motion control system hardware structure based on self-defined bus of the embodiment of the present invention two, is adopted
With master slave and distributed structure, host computer 1, main motion controller 2, three are included at least from 3,12 drivers of motion controller
With 12 motors；The host computer 1 is connected with main motion controller 2, the main motion controller 2 by self-defined bus with
Three are connected from motion controller 3, described to be each connected respectively with four drivers from motion controller 3, each driving
Device is connected with a motor respectively.
The main motion controller 2 includes at least communication interface and main DSP；The communication interface and 1 phase of host computer
Even, the main DSP is connected with communication interface；The main DSP obtains the trajectory planning that host computer 1 issues by communication interface and refers to
It enables, and instruct and parse, look forward to the prospect control, the synchronized Coordinative Control and interpolation operation, realized finally by self-defined bus
It sends movement instruction to each from motion controller 3.
It is described from motion controller 3, include at least FPGA1, from DSP, memory, FPGA2 and signal conditioning circuit；Institute
State FPGA2 and be connected with main motion controller 2 by self-defined bus, it is described from DSP pass through internal bus respectively with FPGA1, deposit
Reservoir is connected with FPGA2, and the FPGA1 is connected with FPGA2 and signal conditioning circuit respectively, the signal conditioning circuit and four
Driver is connected.
The signal conditioning circuit includes at least dummy instruction signal conditioning circuit, command pulse signal conditioning circuit
With feedback signal conditioning circuit.
The FPGA1 is responsible for input/output signal processing, data acquisition, algorithm pretreatment and interface conversion；The FPGA2
It is responsible for the data exchange from motion controller 3 and main motion controller 2, and controls FPGA1 and carry out input/output signal processing, number
According to acquisition, algorithm pretreatment and interface conversion；It is described to be responsible for all kinds of backoff algorithms and the processing of uniaxiality tracking control algolithm from DSP.
The main motion controller 2 issues movement from the FPGA2 from motion controller 3 to from DSP by self-defined bus
Instruct and obtain the status information of each kinematic axis, and each fortune for instructing and obtaining according to the trajectory planning that host computer 1 issues
The status information of moving axis synchronizes coordinated control to all kinematic axis.
The main motion controller 2 can be by self-defined bus simultaneously to all slave fortune being connected on self-defined bus
Then the FPGA2 write control information of movement controller 3 generates different control by the FPGA2 from motion controller 3 and believes
Number, and control the control task for implementing different phase to kinematic axis from DSP and FPGA1.
In this description, it is noted that above embodiments are only two specific examples of the invention.Obviously, of the invention
It is not limited to above-mentioned specific embodiment, various modifications, transformation and deformation can also be made.Therefore, the description and the appended drawings should be recognized
To be illustrative and be not restrictive.It is to the above embodiments according to the technical essence of the invention any simply to repair
Change with equivalent variations and modification, be considered as belonging to the scope of protection of the present invention.
Claims (2)
1. the multi-shaft motion control system hardware structure based on self-defined bus, using master slave and distributed structure, it is characterised in that:
Including at least host computer (1), main motion controller (2), one or more from motion controller (3), one or more drivers
With one or more motors；The host computer (1) is connected with main motion controller (2), and the main motion controller (2) passes through certainly
It defines bus and is connected with one or more from motion controller (3), it is described from motion controller (3) and one or more drivers
It is connected, each driver is connected with a motor respectively；It is described from motion controller (3), include at least FPGA1, from
DSP, memory, FPGA2 and signal conditioning circuit；The FPGA2 is connected by self-defined bus with main motion controller (2),
It is described to be connected with FPGA1, memory and FPGA2 respectively from DSP by internal bus, the FPGA1 respectively with FPGA2 and signal
Conditioning circuit is connected, and the signal conditioning circuit is connected with one or more drivers, described from motion controller (3) and one
Or multiple drivers are connected, one is at most connected with four drivers from motion controller (3)；
The main motion controller (2) includes at least communication interface and main DSP；The communication interface and host computer (1) phase
Even, the main DSP is connected with communication interface；The main DSP obtains the trajectory planning that host computer (1) issues by communication interface and refers to
It enables, and carries out instruction parsing, prediction control, the synchronized Coordinative Control and interpolation operation, realizing finally by self-defined bus will fortune
Dynamic instruction is sent to each from motion controller (3)；
The main motion controller (2) is connected with one or more from motion controller (3) by self-defined bus, is controlled from movement
The number of device (3) processed is determined by the number of driver and motor；The FPGA1 is responsible for input/output signal processing, data acquire,
Algorithm pretreatment and interface conversion；The FPGA2 is responsible for the data exchange from motion controller (3) and main motion controller (2),
And it controls FPGA1 and carries out input/output signal processing, data acquisition, algorithm pretreatment and interface conversion；It is described to be responsible for respectively from DSP
Class backoff algorithm and the processing of uniaxiality tracking control algolithm.
2. the multi-shaft motion control system hardware structure according to claim 1 based on self-defined bus, it is characterised in that:
The signal conditioning circuit includes at least dummy instruction signal conditioning circuit, command pulse signal conditioning circuit and feedback letter
Number conditioning circuit.
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| CN107203191B (en) * | 2017-06-27 | 2019-08-02 | 河南工业大学 | More servo-system preview cooperative control systems and control method |
| CN108920410A (en) * | 2018-06-22 | 2018-11-30 | 华北理工大学 | A kind of big data processing unit and method |
| CN109648599A (en) * | 2018-12-25 | 2019-04-19 | 它酷科技(大连)有限公司 | A kind of exercising elbow joint control method of emulated robot |
| CN111381555B (en) * | 2018-12-28 | 2021-08-03 | 合肥宏晶微电子科技股份有限公司 | Multi-axis motion control method and multi-axis motion equipment |
| CN111381612B (en) * | 2020-03-24 | 2023-10-20 | 苏州曼宇智能科技有限公司 | Multi-axis synchronous control system and method based on CAN bus |
| CN111497964B (en) * | 2020-04-27 | 2021-11-02 | 山东大学 | Distributed control system of electrically-driven quadruped robot |
| CN111830910A (en) * | 2020-07-14 | 2020-10-27 | 南通西塔自动化科技有限公司 | Method and system for realizing multi-axis synchronous motion controller based on PWM |
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| CN101169646A (en) * | 2007-10-26 | 2008-04-30 | 华中科技大学 | Distributed type open system structure digital control system |
| CN103901814A (en) * | 2014-03-11 | 2014-07-02 | 中国矿业大学 | Multi-shaft motion numerical control system |
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